On Halloween night after being lured to a party at a castle, the gang who are accompanied by Fred and Velma discover that the party is held by the actually Count Dracula, his wife, and their assistant Igor with guests like Frankenstein's monster, the Wolfman, the Mummy, the Gill-man, and the Invisible Man. The gang must help the monsters take on the evil magician Chandra and a ghost of known monster hunter Dr. Van Helsing before it’s too late.
